Which psychological levers does your copy pull - and are they honest?
Paste one piece of marketing - a landing or pricing page, an email, a checkout, an onboarding screen, an ad or a popup, as text or HTML - and pick the challenge it is failing at. Your browser finds the principles it pulls (social proof, anchoring, charm pricing, urgency, reciprocity...) and the dark patterns it risks (a countdown, a shaming "no thanks", a pre-ticked add-on, a fee the headline hides), works out every price per day and the Rule of 100 framing, and counts the calls to action. Free, before you sign in, and nothing is uploaded. Then the map lane rates each principle working, weak or misused and honest or not, and the apply lane writes honest rewrites and A/B tests.
The companies, people and numbers are invented. Two are maps (the pricing page also carries its rewrites, one click after the map) and one is a set of rewrites; each comes with a saved model reply, so you can see the whole page without signing in or spending a credit.
What this does, and what it does not
Most marketing copy already pulls psychological levers - a customer count, a crossed-out price, a "most popular" badge, a free trial, a money-back guarantee - usually without anyone deciding which ones, or checking that they are true. The skill behind this page works the other way round: identify which mental models apply to the situation, explain the psychology behind each, give the specific marketing application, and implement it ethically. Its Quick Reference maps eight challenges to the models that answer them - price objections to anchoring, framing, mental accounting and loss aversion; a trust problem to authority, social proof, reciprocity and the pratfall effect; onboarding to the goal-gradient effect, the IKEA effect and commitment - and its pricing rules are arithmetic the page can do for you: the Rule of 100, charm against round prices, and "$3 a day" instead of "$90 a month".
The ethics are not an afterthought. Scarcity and urgency work only when they are genuine; a countdown that resets, a "no thanks, I like losing money" link, a pre-ticked add-on or a fee the headline price hides are dark patterns, and the page flags each one before any model sees the copy. The map rates every lever for honesty as well as effect, the rewrites must fix every high-risk pattern, and a rewrite that the page's own detector reads as shaming, pre-ticked, hidden or obstructive is marked as a disagreement. Proof the copy does not give - a count, a rating, a deadline, a quote - comes back as a [placeholder] you must fill with a true value, never as an invented number.
The paid lanes see up to 220 lines of copy (the middle dropped past that or past 16,000 characters, and the page says so) with the page's reading. Your copy stays in this browser unless you run a lane. It reads the copy as pasted, not your analytics: test before you trust a lever. Derived from the agent skill @coreyhaines31/marketing-psychology (coreyhaines31/marketingskills, MIT: the mental models, their marketing applications, the Quick Reference by challenge, the pricing psychology and the ethics). Sources are listed in llms.txt.